Trolley-pole base.



y Patented 1an.' I4, |902. J. n. BucKLEY a E. H. PHINNEY. Y

No. salgas.

TROLLEY POLE BASE. I

(pplication led Apr. 22, 1901.)

Ulu Model.)

` glwanl'qu Jg. gua/Zig irl/Kwan@ UNITED STATES PATENT OFFICE.

JOHN D. BUCKLEY AND EDWARD H. PHINNEY, OF BRUNSWICK, MAINE,

ASSIGNORS, BY DIRECT AND MESNE ASSIGNMENTS, OF PART INTER- EST TO JOHN D. BUCKIIEY, JOHN W. CHASE, AND GEORGE L. CHASE,

OF BRUNSWICK, MAINE.

TRO LLEY-PO LE BASE.

SPECIFICATION forming part of Letters Patent No. 691,236, dated January 14, 1902.

Application iiled April 22, 1901. Serial No. 56.965. (No model.)

.T0 tu whom t may concern:

Beit known that we, JOHN D. BUCKLEY and EDWARD H. PHINNEY, citizens of the United States, residing at Brunswick, in the county of Oumberland'and State of Maine, have invented certain new and useful Improvements in Trolley-Pole Bases; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to trolley-pole bases.

The object of the-inventionisto provide a device of this character which shall be simple of construction, durable in use, comparativelyinexpensive of production, and efcient in action. Y

With this and other objects in view the invention consists of certain novel features of construction, combination, and arrangement of parts, which will be hereinafter lmore fully described, and particularlypointed out inthe appended claims.

In the accompanying drawings, Figure l is a vertical sectional view of our improved trolley-pole base, a portion of the trolley-pole being shown in place. Fig. 2 is a similar view taken at right angles to Fig. l. Fig; 3 is a detail perspective viewof one of the springs.

Referring to the drawings, 1 denotesthe base-plate of our improved trolley-pole base,

provided with binding-screws 2 for the 'con-- nection therewith of the conductor-wires and formed with an annular vertical flange 3, provided with an annularA groove 4 on its outery face.

5 denotes a cap-platehavin g a downwardlyprojecting annular flange 6 surrounding the annular flange 3 and provided with an annular groove 7, which coacts with the groove 4 to form a ball-race for the reception of antifriction-balls 8, whichmaybe let into said race through an aperture 9, closed by a screwthreaded plug 10, and when in place will prevent the separation of the cap-plate from the base, while permitting of a free rotary movement of the cap with respect to the baseplate.

11 denotes a hood bolted-or otherwise secured to the base-plate and provided with a stop and with a longitudinal opening l2.

13 denotes a ball-socket consisting of a sleeve 14, located within said base and journaled upon a bolt 15, and provided with an extension 16 to receive the lower end of the trolley-pole 17.

18 denotes two coiled springs, each located within the hood about the sleeve 14 and each having one end secured to the extension 13 and its other end secured to the hood. The energy of this spring is exerted to hold the extension 13 and its ball 17 in a vertical position.

19 denotes a spring secured within the casing and having its free end projecting from the path of movement of the trolley-pole, so that should the trolley-pole slip the wire it will strike said spring and prevent damage to the hood and other parts of the device. In other words, this spring acts as a buffer to check the movement of trolley-poles which accidentally slip the wires.

From the foregoing description, taken in connection with the accompanying drawings, the construction, inode of operation, and advantages of our invention will be readily uuderstood without requiring a more extended explanation.

Various changes inthe form, proportion, and details of construction may be made withinV the scope of the invention without departingnfrom the spirit or sacricing any of the advantages thereof.

Having thus described our invention, what we claim, and desire to secu re by Letters Patent, is-

I 1.' In a trolley-pole base, the combination with -the base-plate having an annular flange provided with an annular groove, of a capplate provided with an annular downwardlyprojecting iiange having an annular groove coacting with the first-named groove to form a race, balls located in said race and locking the base-plate and cap-plate against displacement, 'a hood secured to the cap-plate and provided with a longitudinal slot, and a spring-actuated pole-socket consisting of a sOA tally-disposed sleeve journaled in said hood 15 and having an extension projecting through said slot, and a buier-spring located in the path of movement of the vertical extension to serve as a buffer for the same.

In testimony whereof we have hereunto set zo our hands-in presence of two subscribingwitnesses.

JOHN D. BUCKLEY. E. H. PHINNEY.

Witnesses:

CLARENCE E. SAWYER, FRED J. DUNNING. 

